1. TODAY’S DO NOW 1.Balance the following equation: ___SnO 2 + ___C  ___Sn + ____CO 2. Complete the following mole to mole ratios based upon your balanced equation above: ___SnO 2 :___CO ____CO:____C 3. If 14.3 grams of CO are produced in the reaction, how many moles of C reacted?

2. BY THE END OF CLASS TODAY, WE WILL BE ABLE TO… Convert grams of reactants to grams of products using a balanced chemical equation

3. TODAY’S GAME PLAN Do Now10 minutes Grams  Grams15 minutes Warm-Up15 minutes Molympic Gymnastics40 minutes Exit Ticket 10 minutes

4. STOICHIOMETRY… Grams of Given Moles of Given Moles of Unknown Grams of Unknown Each blue arrow represents a conversion factor

5. ____ BF 3 + ____ H 2 O  ____ B 2 O 3 + ____ HF BASIC STOICHIOMETRY CALCULATIONS If 16.7 grams of BF 3 react with an excess of H 2 O, how many grams of HF will be produced? 2 6 3 1 Our Problem:

6. ____ BF 3 + ____ H 2 O  ____ B 2 O 3 + ____ HF BASIC STOICHIOMETRY CALCULATIONS If 16.7 grams of BF 3 react with an excess of H 2 O, how many grams of HF will be produced. 2631 Step 1: 16.7grams BF 3 x 1 mol BF 3 67.79 grams BF 3

7. ____ BF 3 + ____ H 2 O  ____ B 2 O 3 + ____ HF BASIC STOICHIOMETRY CALCULATIONS If 16.7 grams of BF 3 react with an excess of H 2 O, how many grams of HF will be produced 2631 Step 2: 16.7grams BF 3 x x 1 mol BF 3 67.79 grams BF 3 6 mol HF 2 mol BF 3

8. ____ BF 3 + ____ H 2 O  ____ B 2 O 3 + ____ HF 16.7grams BF 3 x x x 1 mol BF 3 67.79 grams BF 3 6 mol HF 2 mol BF 3 BASIC STOICHIOMETRY CALCULATIONS If 16.7 grams of BF 3 react with an excess of H 2 O, how many grams of HF will be produced 2631 Step 3: 20.01 grams HF 1 mol HF

9. Grams of Given Moles of Given Moles of Unknown Grams of Unknown 16.7g BF 3 20.01 grams HF 1 mol HF x x x 6 mol HF 2 mol BF 3 1 mol BF 3 67.79grams BF 3 = 14.8 grams HF

10. ____ BF 3 + ____ H 2 O  ____ B 2 O 3 + ____ HF BASIC STOICHIOMETRY CALCULATIONS If 67.32 grams of H 2 O react with an excess of BF 3, how many grams of HF will be produced? 2 6 3 1 Our Problem:

11. TODAY’S GAME PLAN Do Now10 minutes Grams  Grams15 minutes Warm-Up15 minutes Molympic Gymnastics40 minutes Exit Ticket 10 minutes

12. WARM-UP WITH YOUR TEAM  Stretch those Molympic muscles!  Prepare for your Molympics competition by completing the practice worksheet with your teammates

13. TODAY’S GAME PLAN Do Now10 minutes Grams  Grams15 minutes Warm-Up15 minutes Molympic Gymnastics40 minutes Exit Ticket 10 minutes

14. MOLYMPIC GYMNASTICS  You will be competing in final event of the Molympics – the team gymnastics competition!  Each individual will compete in each event station, but you will be scored as an overall team  Only one member per team at any station at a time  Team with the overall highest total will win the GOLD!

15. TODAY’S GAME PLAN Do Now10 minutes Grams  Grams15 minutes Warm-Up15 minutes Molympic Gymnastics40 minutes Exit Ticket 10 minutes

16. EXIT TICKET 2Hg + O 2  2HgO Consider the balanced equation, how many grams of HgO will be produced when 44.0 g of O 2 react with excess Hg?